Animal warning alarm

Details Animal warning alarm Animal warning alarm

1989-05-11

1991-03-05

Orsino, Joseph A.

Communications: electrical

Audible indication

Ultrasonic pest control

3404255, G08B 300

Patent

active

049980912

ABSTRACT:
An ultrasonic sound producing apparatus for mounting on a vehicle to warn animals of the approach of the vehicle includes (a) a housing, (b) an electrically actuated member for generating an electric tone, and (c) a base for supporting the housing and for mounting the apparatus to a vehicle. In a preferred embodiment, the tone generating member includes a piezoelectric crystal.

REFERENCES:
patent: 3516384 (1970-06-01), Will
patent: 3872472 (1975-03-01), Moschgat
patent: 3890612 (1975-06-01), Sweany et al.
patent: 4091383 (1978-05-01), Rainville
patent: 4104610 (1978-08-01), Inoue et al.
patent: 4374377 (1983-02-01), Saito et al.
patent: 4437428 (1984-03-01), Hoffelner
patent: 4633215 (1986-12-01), Anders et al.
patent: 4903630 (1990-02-01), Rezmer

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